DL 168 then QR 3527 at Barcelona
New York JFK → Barcelona → Rome
Timetable, Barcelona time
08:35DL 168 from New York JFK at the gatealso AF 3597, KL 6039
20:50QR 3527 to Rome leaves the gate
12 h 15 apart on the timetable
QR 3527 leaves 12 h 15 after DL 168 arrives on the timetable: more than half a day, so not a connection we count.